:root {
  color-scheme: light;
  --ink: #102a56;
  --muted: #667085;
  --blue: #155eef;
  --blue-soft: #eaf2ff;
  --page: #f5f7fb;
  --card: #ffffff;
  --line: #dbe4f0;
  --success: #087f5b;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--blue);
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.header-inner,
.page {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 800;
}

.brand span {
  color: var(--blue);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-nav a {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 650;
  text-decoration: none;
}

.page {
  padding: 42px 0 64px;
}

.hero {
  padding: 32px;
  border-radius: 26px;
  background: linear-gradient(135deg, #102a56, #155eef);
  color: #fff;
  box-shadow: 0 18px 42px rgba(16, 42, 86, .14);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 6vw, 3.2rem);
  line-height: 1.12;
}

.hero p {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, .9);
}

.language-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}

.language-switcher button {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.language-switcher button[aria-pressed="true"] {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.language-panel[hidden] {
  display: none;
}

.card,
.document {
  margin-top: 18px;
  padding: 26px;
  border: 1px solid rgba(219, 228, 240, .9);
  border-radius: 22px;
  background: var(--card);
  box-shadow: 0 10px 28px rgba(16, 42, 86, .06);
}

.document h2 {
  margin-top: 30px;
  margin-bottom: 8px;
}

.document h2:first-child {
  margin-top: 0;
}

.document h3 {
  margin-bottom: 4px;
}

.document p,
.document li {
  color: #344054;
}

.document ul,
.document ol {
  padding-left: 24px;
}

.notice {
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  border-radius: 10px;
  background: var(--blue-soft);
}

.success {
  border-left-color: var(--success);
  background: #e9f8f2;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.grid .card {
  margin-top: 0;
}

.button {
  display: inline-block;
  margin-top: 8px;
  padding: 10px 15px;
  border-radius: 12px;
  background: var(--blue);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

.meta {
  color: var(--muted);
  font-size: .9rem;
}

.footer {
  padding: 28px 16px 42px;
  color: var(--muted);
  text-align: center;
  font-size: .9rem;
}

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .card,
  .document {
    padding: 21px;
  }
}